What happens when you have a concussion? – Clifford Robbins
Each year in the United States, players of sports and recreational activities receive between 2.5 and 4 million concussions. How dangerous are all those concussions? The answer is complicated and lies in how the brain responds when something strikes it. Check out this video from TedEd – Lessons Worth Sharing where Clifford Robbins explains the science behind concussions.